Quoted from Coyote:So as per my previous comment, I'm a newb, and my current detector is a cheap, off-the-shelf thing from Harbor Freight.
Can ya'll enlighten me - what do these more advanced (Whites, for example) detectors give? Yes - treat me like an idiot. (Because I am, in this context. Heh!)
It's both hardware and software. Some detectors have many compatible search coils, in different sizes and shapes, which allow for searching deeper or hunting in areas with a lot of trash. On the software side of things, some detectors offer multiple search frequencies, sometimes more than one at once. So you can identify items before you dig.
And then there are things like preset programs that you can choose from depending on what you want to hunt for. Many detectors allow you to change settings to create your own program.
There's other nice stuff as well. Like wireless headphone compatibility, transfer of programs from one detector to another, color displays, display graphs, etc. etc.